I've been told X will melt (synthetic/plastic/whatever) a few times, and hear stories that X won't. I'm personally of the belief that there's enough different non-metal materials out there that you probably need to test when at all possible. So, if you got a bit of sprue or can clip a little thing that can glue back on? Maybe that would work? I dunno.
For instance: my go-turn stripper was Simple Green, and I've used it for many minis, metal and not, from both Privateer Press and now Corvus Belli (Aristeia, not Infinity). I got told point blank by a friend of mine who has YEARS of experience (decades, even) that "don't use that you'll melt the mini."
Now, I don't know if Simple Green has the same formulation now that it did "then", or what line of non-metal mini he was trying with, but I don't doubt it turned something to soup. But it doesn't do that with modern/current-ish PP or Aristeia minis. So, yeah, things can change. Who knows? In a few years they could change their not-metal stuff and it'll be true! Or Simple Green could reformulate and turn into "Dip" from Roger Rabbit so far as my minis are concerned...
It might be cool, but I'm thinking cleanup will be awful, plus no telling what sorts of fun fumes or such were created to get that sort of reaction. Well ventilated area plus gloves seems like a requirement for knowingly doing that.